Yellowhead County uses AFRRCS and a VHF DMR system depending where they are responding. The frequencies listed above are FireNet.
If in Edson Firenet channels 208, 219 and 241 are the ones you will probably be able to receive. Simplex would be Fire Line 40 and 42.
For AFRRCS sites, you will want:
05A, 108, 108 Evansberg
05A, 109, 109 Carrot Creek
05A, 110, 110 Obed Mountain
05A, 111, 111 Athabasca Mountain
05A, 112, 112 Berland
05A, 113, 113 Wolf Creek
05A, 114, 114 Marlboro
05A, 115, 115 Hanlan Petrocan
05A, 118, 118 Edson
Those sites are in Yellowhead County.